Combination oil rig and pumping jack



Oct. 13, 1936. A. CULBERTSON I COMBINATION OIL RIG AND PUMPING J ACKFiled Aug. 21, 1934 2 Sheets-Sheet 1 Z X v. 6 R 0 Y F 1 m1 E 1% 5 4 m rm a Ii: .V e n A a .C M f U k B H i 9 z. 4 z. 2534 M (A 4444a f a a l IX m M m 3 IT! L4 m4 0- 1936- A. CULBE RTSON I COMBINATION QIL RIG ANDPUMPING J ACK Filed Aug. 21, 1954 2 Sheets-Sheet 2 i INVENTOR. AlfredCulbertson ATTORNEY.

Patented Oct. 13, 1936 UNITED STATES PATENT OFFICE COIVIBINATION OIL RIGAND PUMPING JACK 7 Claims.

This invention relates to a combination oil rig and pumping jack. Theobject of this invention is to provide an oil rig having a tower andwalking beam thereon for the purpose of pumping oil from the ground.Another object is to provide a tower which may be used to lift pump rodsand tubing from the well for various purposes and for cleaning the well,etc. A still further object is to provide a rig of the kind mentioned inwhich one side of the tower is left open so that lengths of tubing maybe pulled from the well into the tower and then be removed through theopen side of the tower to be piled on a rack preparatory for future use.A still further object is to provide an oil rig of the kind mentionedwhich is portable. A still further object is to provide an oil righaving adjustments whereby the rig may be properly positioned over thewell so that there would be no side pull on the pump rods or tubing whenthey are being removed from or being replaced in the well, likewisethere would be no side draft on the polish rod during the operation ofpumping. These and other objects will be more fully explained as thisdescription progresses.

Referring to the drawings in which the same characters of referencerefer to the same part throughout the several figures. Fig. 1 is a sideview of my oil rig and pumping jack. Fig. 2 is a view looking at theright hand side of Fig. 1. Fig. 3 is a plan view of Fig. 1. Fig. 4 is anend view of the walking beam and pivotal mounting therefor. Fig. 5 is aside View of a portion of Fig. 4, parts being broken away forconvenience of illustration. Fig. 6 is a plan view of Fig. 5. Fig. 7 isa plan view of the upper side of the bearing block for the walking beam.Fig. 8 is a plan view of the bottom side of the bearing block for thewalking beam. Fig. 9 is a side view of the rig showing it employed inhandling the tubing of the well. Fig. 10 is a sectional view of the rigas seen from the line XX in Fig. 9. Fig. 11 is a side view of theconstruction at the upper end of the tower. Fig. 12 is an end view ofFig. 11. Fig. 13 is a plan view of Fig. 11. Fig. 14 is a side view ofthe bearings for the legs of the tower. Fig. 15 is a plan view of Fig.14.

In the drawings is shown a tower having a face section as shown in Fig.2 all the stationary elements which are welded together to make a rigidone piece element of that section of the tower. On either side of thesection as shown in Fig. 2 is a structure as shown in Fig. 1, the partsthereof being bolted to'the legs 10 or Illa to form the tower.

Attention is called to the fact that the side of the tower opposite thatshown in Fig. 2 is void of braces or truss rods and the like, leavingthat side of the tower entirely open from top to bottom. At H is anelement of the tower on which is rockably swung a cantilever element 12to which is pivotally attached one end of the pitman l3, 5 the oppositeend of which is rockably mounted on a bearing located on the crossmember 15 of the tower. At 16 is a curve channel like element welded tothe end of the walking beam, said element l6 being adapted to receive acable I! 10 which is attached to the polish rod IS. The upper ends ofsaid cable l8 being rigidly attached to the walking beam by any suitablemethod so that the polish rod will be lifted straight up and down duringthe reciprocal motions of the walk- 15 ing beam. At 19 is a cableattached to the lower end of the cantilever element l2, which leads toany suitable source of power whereby the cantilever element l2 may berocked to the dotted position 12a whereupon the walking beam will be 9rocked to the dotted position 14a thereby raising the polish rod l8 topump oil from the well as will be understood.

At l 5 is shown a cross member of the tower on which is mountetd a plate20 having legs 2| which are welded thereto, said legs 2| also beingwelded to the element 1 5 to make a rigid and permanent attachment ofthe plate 20, to the element l5. At 22 is a bearing block that is boltedto the plate 26, said bearing block 22 having a seat 23, therein, inwhich rests a shaft 24 to which is integrally attached a verticallyextending shaft 25 on which is integrally mounted a bearing plate 26. At21 is a block having a hole therein in which is positioned the pin 25,said block 21 resting on the plate 26 and being rigidly held in saidposition by nut 28 which is screwed on the upper end of shaft 25. Theshaft 24 is held in the bearing 23 by bearing cap elements 29 which arebolted to the bearing plate 22 as shown in Figs. 4 and 5. At 14 and I4are shown channel like elements positioned on either side of block 2'!and rigidly bolted thereto by the bolts 29 which pass through thechannels 14' and I4" and the block 21 to form a rigid walking beam asshown at I4 in Figs. 1 and 3. At 30' is a series of holes in thechannels l4 and 14'', said holes adapted to receive a pin on which ispivotally mounted the upper end of the pitman l3. It is obvious that thelength of the pumping stroke may be varied depending 50 on which one ofthe holes 30 may be employed in connecting the pitman l 3 to the walkingbeam 14.

I will assume that the well is to be cleaned out and the tubing and thepump rods are to be removed therefrom. The method of removing the pumprods and tubing is the same in as much as Fig. 9 shows the rig in theprocess of handling the tubing. That process will now be explained.

The walking beam l4 must be moved so as to not interfere with the uppermovements of the pumping rods or tubing. This is done by firstdisconnecting the pitman l3 from the walking beam l4 or the cantileverelement l2 and then loosening the nut 28 whereupon the walking beam maybe turned on the pin 28 to the position shown in the figures shown in 9and I0. Now on the upper end of the tower is a pulley 30, having an axle3|, which is carried in the said bearing block 32 being mounted on aplate 33 which rests on a pair of I beams 34 to which are welded theupper ends of the legs l0 and la of the rig. Between the legs I0 andIlla. is a cross element 35 which is welded to said elements I0 and Illaand to which is rigidly attached a hook element 36. One end of a cable31 is attached to the hook element 36 and passes around a pulley-38 andover the pulley 30 and then downward through a pulley 39 which isattached to an eye 40 on the cantilever arm l2,,the cable 31, thencegoing horizontally to a power unit such as a Wench or the like on whichthe cable 31 is wound, thereby raising the tubing 40 out of the well. At4| is a tubing board supported on the framework of the tower upon whicha man may stand to guide the tubing as it is coupled or uncoupled fromthe joint below. After the upper joint of tubing has been uncoupled, thelower end may be swung outwardly through the open side of the tower asillustrated at 40' and piled on the pile of tubing 40 as illustrated inFig. 9, likewise the tubing 40 may be picked up from the pile 40a andsuspended over the tubing in the well to which it may be coupled andthen lowered into the well preparatory for receiving the next length oftubing which will be handled in the same manner. Pump rods may also behandled in the same manner.

The tower is preferably supported on concrete bases 42 which extend intothe ground and on top of which is a bearing plate 43 adapted to receivecross members 44.1: which are welded to the bottom end of the legs l0,IOa, lb, and I00. At 44 and 45 are cap elements bolted to the plate 43and over the cross members 44.1; as means of rigidly holding the toweron the concrete base.

In erecting the tower it is important that the tower be so located thatthe curved element I6 is tangent with the center of the well, also thecenter of the well should be tangent with the left hand side of thepulley 30, therefore it may be necessary to shift the tower or the partsthereof in one direction or the other in order to accomplish thisadjustment, therefore the elements 44 and 45 are provided with holes toreceive bolts 46 and other holes 4'! are provided in the elements 44 and45 to receive the bolts 46 so that the elements 44 and 45 may be shiftedsideways thereby making it possible to shift the tower to make thedesired adjustment. In addition to thisadjustment, further adjustmentsof the pulley 30 may be made as follows; The plate 33 is provided withholes 48 to receive bolts 49 which pass through the plate 33 into the Ibeam elements 34, and as shown in Fig. 13 the bolts 49 may be removedand the plate 33 shifted to the right or left to obtain the desiredadjustment of the pulley 30 in a right or left hand position. On theshaft 3| of the pulley 30 is a series of collars 56 of varyingthicknesses, therefore the collars may be removed from the shaft 3| andbe replaced on the opposite side of the pulley and thereby shift thelocation of the pulley to make it line up with the center axis of theWell.

As previously described, the walking beam 14 is supported on a bearingblock 42, the bottom side of the bearing block 22 is provided with aseries of block holes 5| to receive the bolts 52 which pass through theplate 20 and into the bearing block 22, therefore the block 22 may beshifted on the plate 20 to make the desired adjustment on the walkingbeam.

Such modifications may be employed as lie within the scope of theappended claims without departing from the spirit and intention of theinvention. Now having fully explained my invention, what I claim as newand desire to secure by Letters Patent is:

1. In a combination oil rig and pumping jack,

a four legged tower, one side of said tower being open, a walking beamsupported on said tower, and means on said tower and spaced below saidwalking beam and a connection therebetween for actuating said walkingbeam.

2. In a combination oil rig and pumping jack,

a tower, hoisting means on said tower, a Walking beam, said walking beambeing rockably mounted on said tower and means on said tower and spacedbelow said Walking beam, and a connection therebetween to actuate saidwalking beam. 5

3. In a combination oil rig and pumping jack, a tower and a walking beamcarried thereon, said walking beam being pivotally mounted bothvertically and horizontally, and means in said walking beam for thehorizontal adjustment of said walking beam toward or away from thecenter axis of the rig.

4. In a combination oil rig and pumping jack as described in claim 3,and means on said tower for actuating said walking beam.

5. In a combination oil rig and pumping jack, a tower and a walking beamthat is pivotally mounted both vertically and horizontally thereon,means carried on said tower for actuating said walking beam, and meansfor adjusting the length of the stroke of said walking beam.

6. In a combination oil rig and pumping jack, a tower, and adjustablesupports forsaid tower, one side of said tower being open for thepassage of vertically disposed tubing or pump rods in or out of saidtower, means on said tower for the

